Akademik
rost - scut
rostral angle
rostral carina
rostral filaments
rostral formula
rostral hood
rostral incisure
rostral latus
rostral notch
rostral plate
rostral sinus
rostral spine
rostral tooth
rostrolateral
rostrum
rudimentary oostegite
rugose
saccule
sacculus
sagittate
saw bristles
scale
scape
scaphocerite
scaphognathite
schizodont hinge
schizopod larva
sclerite
sclerotized